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Open House Archive

Welcome to the Open House Archive - your central repository for accessing all previous Open House buildathons and projects.

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Project Highlight

Project Highlight

EduBricks

EduBricks is a platform enabling fractional ownership of tokenized real estate, making investments more accessible

Champion

7th Place

Arbitrum X EDU Chain Mini-Hack

Pencil Finance

Bringing $3 Trillion in Student Loans On-Chain

Champion

1st Place

Arbitrum X EDU Chain Mini-Hack

Stylish Course to Stylus Smart Contract Development

A comprehensive course on deploying and interacting with Stylus smart contracts on Arbitrum and EDU Chain, featuring a full-fledged Stylus IDE for seamless deployment and interaction.

Champion

First Prize

Arbitrum X EDU Chain Mini-Hack

VineFinance

Vine Finance is a decentralized, modular revenue strategy protocol.

Champion

Third Prize

Arbitrum X EDU Chain Mini-Hack

Orbital

A next-gen AMM that supports 2, 3, or even 10,000 stablecoins in a single pool, scaling concentrated liquidity into higher dimensions.

+1
Champion

Second prize

Arbitrum Open House India: Online Buildathon

zkArb SDK

zkArb SDK is a developer toolkit that makes building zero-knowledge apps on Arbitrum simple and fast. It provides plug-and-play Circom circuit compilation, proof generation, and ready-to-deploy verifier contracts, so developers can focus on dApps instead of cryptography.

Champion

Honorable Surprise Mention

Arbitrum Open House India: Online Buildathon

Builder Highlight

Most Hackathon Won

Most Project Built

Builder Highlight

Most Buildathon Won
s

songsu

Hong Kong
Champion
1
No.1
e

elpabl0.eth

Indonesia
Champion
1
No.2
c

contact ai

Champion
1
No.3
Most Project Built
z

zorzalcripto

regencia
Champion
55
No.1
R

Rick

California
Champion
44
No.2
A

Amaan Sayyad

Navi Mumbai, India
Champion
33
No.3

Plether Perps DEX

Trade & hedge dollar index perpetuals.

Tech StackReact, Solidity, Web3
Builder
SStanisław Wasiutyński
DeFi

Nihilium

Decentralized 'Forgot my password', to onboard the next billion users

Tech StackSolidity, Ethers, Node, React
Builder
OOlaf van Wijk
InfraOther

Ultimate

the uxmaxxing lab.

Tech StackSolidity, React, Web3
Builder
PPiotr Duda
AIDeFi

TEST-danielProject

TEST-danielProjectTEST-danielProjectTEST-danielProjectTEST-danielProjectTEST-danielProject

Tech StackNode, Web3, AGENTS, Ethers
Builder
Ttest-Daniel test-Ortega
DeFiDAOGaming

Fonder

Fonder AI Investments is a cash-flow-aware AI treasurer that identifies truly idle corporate cash, invests it into institutional on-chain yield, and brings it back before the business needs it.

Tech StackWeb3, Solidity, Node, Ethers, Next, Python
Builder
AAlejo Lovallo
DeFiAI

SettleySend

Send money internationally and let recipients choose how to receive it: local bank, mobile money, or crypto wallet. SettleySend powers cross-border remittances with stablecoins.

Tech StackSolidity, Ethers, Web3, Python, React, Arbitrum, Typescript, Supabase
Builder
TTemisan Agbajoh
DeFiSocialFi

MaritimeDAO

Ship tokenization platform and ecosystem

Tech StackSolidity, Web3, Next
Builder
AArmando Medina
RWAAINFT

dehix copy

web3 and ai support ecosystem, one stop solution for anyone who is part of or interested in web3 and ai ecosystem

Tech StackNext, Web3, Ethers, Solidity, Node
Builder
AArpit Chauhan
DeFiNFTDAO

PayID Apps

PAY.ID: programmable payment rules for humans and AI agents. Rules as NFTs. Privacy-first transfers. On-chain enforcement. The payment layer for 0G's modular ecosystem.

Tech StackWeb3, React, Solidity
Builder
RRaihan Ardianata
OtherInfra

valen

VALEN is the governance layer for Agentic Finance, enabling AI agents to execute payments, transfers, and tokenized asset operations with mandates, budgets, compliance checks, and verifiable on-chain

Tech StackNext, React, Rust, Solidity, Ethers, Web3
Builder
Ggowe hanter
AIDeFiInfraRWA

Alpha-attest

The accountability layer for financial AI agents. Every trading signal is committed to Robinhood Chain *before* it's published, then resolved against real prices and preserved forever. No agent can quietly delete its bad calls. Verify any signal's fingerprint in your own browser. Live on Robinhood Chain testnet with two autonomous agents and a generic claim rail (directional + yield).

Tech StackNext, Web3, React, Node, Solidity
Builder
Ddamilola mustapha
AIDeFiInfra

CredFlow

CredFlow enables undercollateralized borrowing by combining multi-chain DeFi history, machine learning, optional off-chain bank verification, and a portable credit registry synchronized across chains.

Tech StackNext, Solidity, Python
Builder
SSam Felix
DeFiAI
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